Motor vehicle headlamp for emitting a light beam delimited by a

Details Motor vehicle headlamp for emitting a light beam delimited by a Motor vehicle headlamp for emitting a light beam delimited by a

1996-04-04

1997-07-29

Dority, Carroll B.

Illumination

Light source and modifier

Including reflector

362346, 362348, F21V 700

Patent

active

056516100

ABSTRACT:
A headlamp for a motor vehicle has a lamp with an axial filament which emits light all around it, together with a reflector and a cover glass. The reflector produces a beam which is delimited by a cut-off line defined by two half planes which are offset from each other in the vertical direction, and which lie on either side of a vertical reference plane. A first lateral zone of the reflector has a reflective surface which forms a concentrated beam delimited by a straight, horizontal first cut-off line, situated entirely on one side of the vertical reference plane. A second zone of the reflector, extending over the base surface of the latter and on the opposite side, has a reflective surface which produces a wide beam delimited by a straight and horizontal second cut-off line. The reflector also includes means for offsetting the light beam vertically, such as to put the first cut-off line at the level of the higher cut-off half plane, and the two zones of the reflector are joined continuously at their intersection along a continuous line extending between the upper and lower edges of the reflector.

REFERENCES:
patent: 3858040 (1974-12-01), Ricard
patent: 4481563 (1984-11-01), Snyder et al.
patent: 4797797 (1989-01-01), Collot
patent: 4803601 (1989-02-01), Collot et al.
patent: 4924359 (1990-05-01), Lhydaz et al.
patent: 5390097 (1995-02-01), Nino
patent: 5539629 (1996-07-01), Chinniah et al.

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